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The brightness of a tooth is a function of how light is reflected off the enamel. Whitening agents work by dehydrating the enamel, that is, by removing moisture on a molecular level from within the enamel. This increases the amount of light that is reflected off the tooth, and therefore it makes them appear whiter. There is no indication at this time that this is harmful to the teeth in the long term, however, some people will experience an increase in temperature sensitivity when they whiten their teeth. Porcelain crowns and tooth-colored fillings do not bleach because the agents cannot remove moisture from them as they do with natural enamel. Over time, the moisture will return to the enamel, and the whitening process will have to be repeated to maintain the new whiteness of the teeth.

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โˆ™ 2006-05-13 22:51:47
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Q: Why do teeth whiteners not work on porcelain crowns?
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Will any of the teeth whiteners work on dental crowns?

Not all teeth whiteners work per se; unless a teeth whitening treatment is done by a professional. However, if you are pertaining to over-the-counter teeth whiteners then intense research should be done first before trying out the product. Cheap otc teeth whiteners are usually dangerous since the chemicals used to whiten teeth are of low quality. Another factor that will justify whether a teeth whitening "works" is it's longevity. Most otc whiteners would only last for a short time; as far as I there are products that would last for 6 months and less.


What are the pros and cons to porcelain veneers over caps?

Porcelain veneers remove less enamel from the teeth and are preferrable when you are covering discolorations and small imperfections in the teeth. They are not designed for teeth that are not healthy. On the other hand, caps (or crowns) are stronger and more durable and will work on teeth that are not as healthy.


What teeth whiteners work best on tobacco stains?

Teeth whiteners that work best on tobacco stains are the ones that contain Hydrogen Peroxide and Carbamide Peroxide. For quick and fast results use Zoom.


Are Porcelain Veneers less expensive than crowns?

Porcelain Veneers are slightly less expensive than crowns because generally there is less tooth work to do with veneers but they also break more easily than crowns.


Do Rembrandt whitening strips work on caps?

No. Tooth whitening products do not work on caps, crowns or bridges. This is because tooth enamel is porous, whereas porcelain caps are not.


How do teeth whiteners work?

A chemical is applied to any tooth needing the whitening. Professionally, they are then activated by UV light shone onto the chemical and teeth; this makes them react with the tooth surface and make it whiter.


Can you safely bleach teeth with Clorox?

No, no, no, you can't. Neve put bleach cleaner in your mouth. If you want to bleach your teeth see a dentist or buy a bleach kit at the store. The above poster gave you excellent advice. ONLY YOUR DENTIST should bleach your teeth! Even buying the whiteners in the stores does damage to the gums. I just asked my dentist this in November while I was having work done on my teeth. The other teeth whiteners can eat away at your teeth, and people don't REALLY need it unless your teeth are dark yellow like me 'cause I smoke a lot.


What type of procedures are considered cosmetic dental work?

Implants that would cover existing teeth that would enhance a smile. Crowns that would cover existing teeth that were broken,chipped or otherwise damaged.


Which teeth whitening product is good for night use?

As teeth whitening products can be sensitive to your teeth, always read the label to make sure its good for night use. Some whiteners are designed to only work for 30 minutes. If you keep them on longer you can damage your enamel. A good night time product is Crest Night Effects.


How does porcelain work?

you make it :)


Is there any cheat code for this game call wizard101 that work and it give you lots of crowns?

There are plenty of codes, but I'm afraid none that give you crowns :( You have to buy the crowns no matter what


What has the author George Evans written?

George Evans has written: 'A practical treatise on artificial crown- and bridge-work' -- subject(s): Bridges (Dentistry), Crowns (Dentistry), Dentures, Prosthodontics, Description and travel, Crowns, Artificial Tooth, Partial Denture 'A practical treatise on artificial crown-, bridge-, and porcelain-work' -- subject(s): Accessible book, Dental ceramics, Dental metallurgy, Dentures, Metallurgy, Artificial Tooth, Dentistry


What dental work as crowns?

Your question is a bit vague. Do you mean what are dental crowns ? or what type of restorations in the mouth are crowns? Anyway, here is an article explaining what is a dental crown. http://www.intelligentdental.com/2010/03/27/what-are-dental-crowns/


Who typically works in a dental laboratory?

Dental laboratory technicians typically work in a dental laboratory. They use impressions, or molds, of a patient's teeth to create crowns, bridges, dentures, and other dental appliances.


What are some types of cosmetic dental work?

There are several different works, and procedures that dentists do. Here is a list of just a few of the procedures they do: Teeth Whitening, Veneers, Implants, Crowns, Shaping, Bonding, and Orthodontic Treatment


What does major dental care insurance exactly cover?

Major dental care insurance will cover maintenance on your teeth, such as yearly cleanings and some x-rays. It will also cover routine work such as fillings and part of major work, such as crowns and root canals.


What are the risks associated with cosmetic dental work?

There aren't a lot of risks with cosmetic dental work. The most common is the discomfort. It really depends on the type of work done. Your basic teeth whitening may cause the enamel to discolor again quickly. If you choose to get porcelain viniers, you must remember the work is permanent.


What type of glue can you use on porcelain?

You can get special porcelain glue in many hardware stores. Super glue may work but that depends on the exact surface.


Why do your teeth tingle when you work out really hard at the gym?

You might be gritting your teeth when you work out.


Are there dental schools that perform restorative work in NC?

The dental schools do excellent work and the professors monitor the work during the appointment. I got crowns over 30 years ago that other dentists still comment on the good work. They are not surprised that I got it done at UNC- Chapel Hill. They saved my teeth. I only had to pay for the materials. They were not in and out to make a profit. They do the work by the book.


What adhesive is best for ceramic and porcelain tile?

Thinset mortar. There's a special one for porcelain tile; any thinset will work for regular ceramic tile.


Can Windex be used to clean porcelain tile floors and their grout Can Windex be used to clean shower porcelain tile and the shower special grout?

Nothing wrong with windex, it will work ok & not harm Porcelain but may not get everything off it.


How can one know what a Nymphenburg porcelain work is worth?

This link may be helpful.


What do you do if your dentist put crowns and a bridge on your two front teeth and now after about a year the crowns are a little loose and there is now a gap between your two front teeth?

Go back to the dentist and get them redone, they should garenty there work for 5 yrs. Or get in touch ADA in your state , American Dental Association.Even insurance com. will replace crns after 5yrs. Dental EDDA 20yrs. e I agree. See the dentist that placed the crowns. However, from what you describe, it may not be a crown issue. It may be a periodontal problem, and the teeth themselves are loose due to gum disease, or it may be an orthodontic problem where the bite is wrong and the teeth have shifted uncontrolled. Regardless of the cause, you need to see your dentist right away. You may also want to see another dentist for a second opinion. What you have described is not a good situation, not at all.


What is the function of Teeth and Tongue?

how do your teeth and tongue work together